Operator ID: las_video_resize

Core capabilities #

Video resolution adjustment

• Intelligent resolution adjustment within the specified range
• Supports multiple aspect ratio preservation strategies
• Allows control of video quality and encoding parameters
• Keeps the audio stream unaffected

Demonstration #

Supported regions #

• Beijing: cn-beijing
• Shanghai: cn-shanghai
• Guangzhou: cn-guangzhou

Operator performance #

Input requirements #

Output requirements #

• Billing standards

  Sub-items	Billing standards description
  Billing item	Billing is based on the usage statistics for input video duration.
  Billing type	Usage-based billing, unit: CNY/minute, billed hourly based on actual usage.
  Unit price	The unit price is determined by the input video's encoding format and video resolution.

• Billing details
  Billing formula: Total cost = unit price * usage

  Input video encoding format	Output video resolution	Unit price
  H.265	4k	1.05 CNY/minute
  	2k	0.525 CNY/minute
  	1080p	0.244 CNY/minute
  	720p	0.122 CNY/minute
  	540p	0.102 CNY/minute
  	480p	0.081 CNY/minute
  	360p	0.054 CNY/minute
  	240p	0.043 CNY/minute
  H.264	4k	0.21 CNY/minute
  	2k	0.105 CNY/minute
  	1080p	0.049 CNY/minute
  	720p	0.024 CNY/minute
  	540p	0.02 CNY/minute
  	480p	0.016 CNY/minute
  	360p	0.011 CNY/minute
  	240p	0.009 CNY/minute

API usage instructions #

• To submit a task via the Submit interface to obtain the task's task_id, then use the Poll interface to query the status of the corresponding task (task_id) and retrieve the operator processing result.
• Caution: After submitting the task, the task_id is valid for 3 days. After 3 days, you will not be able to use this task_id to obtain the operator processing result.

Submit #

POST https://operator.las.ap-southeast-1.volces.com/api/v1/submit

Interface description #

Submit a las_video_resize operator task to adjust video resolution.

Request parameters #

Response parameters #

const properties = ({
  "columns": [
{ "title": "Parameters", "dataIndex": "column_0", "key": "column_0", "width": 300 },
{ "title": "Type", "dataIndex": "column_1", "key": "column_1", "width": 150 },
{ "title": "Example", "dataIndex": "column_2", "key": "column_2", "width": 150 },
{ "title": "Description", "dataIndex": "column_3", "key": "column_3" }
  ],
  "data": [
    {
      "key": "1",
      "column_0": "metadata",
      "column_1": "metadata",
      "column_2": "",
"column_3": "Requested metadata",
      "children": [
        {
          "key": "1-1",
          "column_0": "task_id",
          "column_1": "string",
          "column_2": "task-xxx",
"column_3": "Task ID in asynchronous mode, used for job status queries."
        },
        {
          "key": "1-2",
          "column_0": "task_status",
          "column_1": "string",
          "column_2": "PENDING",
"column_3": < div> Task status in asynchronous mode. < br/>< ul>< li> PENDING, request received</ li>< li> RUNNING, running</ li>< li> COMPLETED, completed</ li>< li> FAILED, failed</ li></ ul> div>
        },
        {
          "key": "1-3",
          "column_0": "business_code",
          "column_1": "string",
          "column_2": "200",
"column_3": "Business code."
        },
        {
          "key": "1-4",
          "column_0": "error_msg",
          "column_1": "string",
          "column_2": "",
"column_3": "If an exception occurs, detailed exception information will be returned."
        }
      ]
    }
  ]
}); 
return <Table border={{ cell: true, wrapper: true }} pagination={false} {...properties} />;

Example #

Request example

# Please set INPUT_PATH to the TOS path of the video file saved under this account
export INPUT_PATH="tos://xxxx/sample.mp4"
# Please set OUTPUT_PATH_TEMPLATE to a writable TOS path on this account
export OUTPUT_PATH_TEMPLATE="tos://xxxx/output/"
# Initiate operator service request
curl --location "https://operator.las.ap-southeast-1.volces.com/api/v1/submit" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer $LAS_API_KEY" \
--data "{
    \"operator_id\": \"las_video_resize\",
    \"operator_version\": \"v1\",
    \"data\": {
        \"video_path\": \"$INPUT_PATH\",
        \"output_tos_dir\": \"$OUTPUT_PATH_TEMPLATE\",
        \"output_file_name\": \"demo1.mp4\",
        \"min_width\": \"890\",
        \"max_width\": \"890\",
        \"min_height\": \"890\",
        \"max_height\": \"890\"
    }
}"

Response example

{
    "metadata": {
        "task_id": "task-20251125163544-abc123",
        "task_status": "PENDING",
        "business_code": "200",
        "error_msg": ""
    }
}

Poll #

POST https://operator.las.cn-beijing.volces.com/api/v1/poll

Interface description #

Query the execution status and result of the video resolution adjustment task.

Request parameters #

Response parameters #

Example #

Request example

curl --location "https://operator.las.ap-southeast-1.volces.com/api/v1/poll" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer $LAS_API_KEY" \
--data '{
    "operator_id": "las_video_resize",
    "operator_version": "v1",
    "task_id": "task-20251125163544-abc123"
}'

Response example

{
    "metadata": {
        "task_id": "06ecbd66031e7006022d",
        "task_status": "COMPLETED",
        "submit_time": "2026-07-21T16:04:06+08:00",
        "end_time": "2026-07-21T16:04:06+08:00",
        "business_code": "0",
        "error_msg": "Task processed successfully"
    },
    "data": {
        "input_path": "tos://xxx/xxx.mp4",
        "output_path": "tos://yyy/result/demo1.mp4",
        "duration": 32.512,
        "width": 1780,
        "height": 890
    }
}